ivanroosvelt’s gists

ivanroosvelt / getNestedValues.ts

Last active August 18, 2023 14:06

Get nested properties from object based on array of dotted hierarchical name of properties

	function extractPropertiesValues(obj: any, props: string[]): any {
	function getNestedPropertyValue(obj: any, path: string): any \| undefined {
	const pathArray = path.split('.');
	if (pathArray.length === 1) return obj[pathArray[0]];
	const prop = pathArray.splice(0, 1)[0];
	if (!!!obj[prop]) {
	console.log(
	'[xyz] PropNotFound:',
	{ prop, obj, pathArray }
	);

ivanroosvelt / jsonToCsv.js

Created May 12, 2023 20:47

jsonToCsv NodeJs

	const fs = require('fs');

	const jsonToCsv = (data, filename) => {
	const allProperties = new Set();
	for (const record of data) {
	extractProperties(record, '', allProperties);
	}
	const properties = Array.from(allProperties).sort();

	// Generar los datos para el archivo

ivanroosvelt / main.dart

Created May 2, 2023 11:05

Dart websocket server

	import 'dart:io';

	void main() {
	int port = 8080;
	HttpServer.bind(InternetAddress.anyIPv4, port).then((HttpServer server) {
	print("HttpServer listening... localhost:$port");
	server.serverHeader = "Sample websocket server";
	server.listen((HttpRequest request) {
	if (WebSocketTransformer.isUpgradeRequest(request)) {
	WebSocketTransformer.upgrade(request).then(handleWebSocket);

ivanroosvelt / tensorPolynomialRegression.js

Created April 3, 2023 12:47

Regresion polinomica Tensorflow

ivanroosvelt / install-redis.sh

Created March 22, 2023 14:24 — forked from jpickwell/install-redis.sh

Installing Redis 5.0.0 on Amazon Linux

ivanroosvelt / fixedQueue.py

Last active February 24, 2023 10:37

Abre y mantiene una cola de tamaño definido.

	class FixedQueue:
	"""
	Abre y mantiene una cola de tamaño definido.
	:param width: Tamaño de cola
	:param init: Valores iniciales
	"""
	def __init__(self, width:int, init=[]):
	self.q = deque(init[-width:])
	self.w = width
	def update(self, data):

ivanroosvelt / tcp_redirect.py

Created January 7, 2023 15:56

Python3 tcp connection redirector

	#!/usr/bin/python3

	import socket
	import threading
	import select
	import sys

	terminateAll = False

	class ClientThread(threading.Thread):

ivanroosvelt / ema.py

Created January 7, 2023 15:55

Calculate EMA

	import array

	def ema(s, n):
	"""
	returns an n period exponential moving average for
	the time series s
	s is a list ordered from oldest (index 0) to most
	recent (index -1)
	n is an integer
	returns a numeric array of the exponential

ivanroosvelt / set_interval.py

Created January 7, 2023 15:54

Python non blocking set Interval

	import threading

	class ThreadJob(threading.Thread):
	def __init__(self,callback,event,interval):
	'''runs the callback function after interval seconds
	:param callback: callback function to invoke
	:param event: external event for controlling the update operation
	:param interval: time in seconds after which are required to fire the callback
	:type callback: function
	:type interval: int

ivanroosvelt / slope-angle.js

Created January 7, 2023 15:54

Slope angle in JavaScript

Ivan López ivanroosvelt